Our study shows that to the degree you can learn while multi-tasking, you will use different brain systems.

It plays a major role in the brain system that is responsible for reward-motivated behavior.

There are apparently different brain systems to deal with categories of knowledge, neurons actually firing according to abstract ideas.

Those four categories corresponded with my understanding of the brain systems.

Yet, it is during adolescence when the different brain systems become better integrated.

It is negatively correlated with brain systems that focus on external visual signals.

The intraparietal region relies on several other brain systems to accurately perceive numbers.

Generally, infants are born with formed brain systems and their brains develop very rapidly during the first three years.

Gray's model of personality was based on three hypothesized brain systems:

Three brain systems, all interrelated, the researchers say, control lust, attraction and attachment.